In this video, Bum Motorsports transforms a small go-kart into an off-road vehicle capable of speeds over 60 mph. This ...

[Peter Holderith] set out some time ago to build an electric go-kart. That by itself is not terribly unusual, but where his project diverts from the usual is in the fact that each of the four wheels ...

The karts will be launched in Japan this fall, but could eventually be offered in other markets ...